Worldwide Airfield SummaryTheWorldwide Airfield Summaryprovidesclimatological data for airfields and geographical areasthroughout the world. There are 10 volumes, somepublished in two or more parts.CLIMATOLOGICAL REFERENCESThere are many references, which can be used inclimatological work, so many in fact that they would betoo numerous to list here. They are tabularized in thefollowing publications:Guide to Standard Weather Summaries(NAVAIR 50-1C-534) contains an index of all thestandardmachine-tabulatedsummariesavailablethrough FNMOD, Asheville.In addition, many navy climatic references arelisted in the Navy Stock List of Forms and Publications,NAVSUPpublication2002,section2B.NavyclimatologypublicationsarefoundundertheNA-SO-1C-series.The following publications can also be used toprepare climatological briefings and packets:U.S. Navy Marine Climatic Atlas of the World,volumes 1 through 7 and 9 (NAVAIR 50-1C-528through 533, 550, 554, s and 565). Thesepublications contain climatic data for all theprincipal ocean areas of the world. They haveboth land and ocean sections. The surfacesection contains data presented by graphs,tables, and isopleths on such elements as surfacewinds, visibility, precipitation, storm tracks, etc.The oceanographic section includes charts oftidal data, currents, and ice.U.S. Navy Hindcast Spectral Ocean Wave ModelAtlases, volume 1, North Atlantic (NAVAIR50-1C-538),volume2,Pacific(NAVAIR50-1C-539). These atlases represent ocean wavedata by tables, bar graphs, and isopleths. Data isbased on numerically derived historical data inthe form of wind and wave climatology. Thesepublications are designed to provide a moreaccurate representation of overall ocean waveclimatic data for some applications. They aredesigned to supplement but not supersede theconventional Marine climatic atlases.Local Area Forecasters HandbooksThe Local Area Forecasters Handbooks, asrequired by NAVMETOCCOM Instruction 3140.2( ),contain valuable information on local and area weatheras follows: A description of the local topography,terrain and general synoptic characteristics of weatheroccurrences in thearea. Mean storm tracks for theregion, a limited amount of climatological data, andlocal forecasting rules and techniques are alsoavailable. A handbook can serve as a compositesummary of expected weather events and the effects ofcertain parameters on local weather.6-1501 23456781009080706050%403020100NENE SES SW W NW C0*1234}}Total Cloud AmountLow Cloud AmountCLOUD AMOUNT IN EIGHTHSCumulative percent frequency of indicated cloud amount equal to orless than the amount intersected by the curve.Number of observations.Obscurations(77% of all total cloud amounts were 7/8.)<<(46% of all low cloud amounts were 2/8.)Low cloud amount: Percent frequency of observationsfrom each direction and calm that were accompaniedby low cloud amounts 5/8 and 7/8. Low cloudsare clouds with bases <8000 feet.}}5/85/86/87/8&(28% of all SE winds were accompanied by low cloud amounts5/8 and 14% by low cloud amounts 7/8.)An asterisk indicates that the percentage is based on 10 - 30 obser-vations of wind direction, total and low cloud amount. 0 replacesbar graph when no low cloud amounts 5/8 were observed witha wind direction or calm. 0 or bar is omitted when number ofobservations of total and low cloud amount from a wind directionor calm is less than 10.AG5f 0606Figure 6-6.Combination bar and line graph (with legend and instructions for use).